Christian schmidt



(NoModel.)

C. SCHMIDT.

l Y GUTTINQ APPARATUS POB. HARVESTERS. No. 337,62?. T Patented Mar. 9, 1886...

WITNESSTS: j

ATTORNEYS.

N. PUERS. Phmwumagnpher, wnshinglm, D4 a Ntra STATES PATENT OFFICE...

CHRISTIAN SCHMIDT, OF BLUE ISLAND, ILLINOIS, ASSIGNOR OF ONE-FOURTH TO JOHN ENGELHARDT, OF SAME PLACE.

CUTTING APPARATUS FOR HARVESTERS.

specifica-HON farming part of Leiters' Patent No. 337,525, dated March 9. 18ers.

Application filed April 6, 1885.

.T a/ZZ whom it may concern:

Be it known that I, CHRIsTIAN SCHMIDT, a citizen of the United States, and a resident of Blue Island, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cutting Apparatus for Harvest-ers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others 1o skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a top view of my improved i 5 sickle-bar. Fig. 2 is avertical section on line .fr x, Fig. l. Fig. 3 is a horizontal section on line 'y y, Fig. 2; and Fig. 4 is a vert-ical crosssection on line z z, Figs. l, 2, and 3.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to sickle-bars; and it consists in the improved construction and combination of parts of a sickle-bar having removable cutter-blades, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates a tiat bar which i'orms the lowerV half of the sickle-bar, and B indicates vthe bar which forms the upper half, which bars are 3o secured together by means ot' rivets or screws C, and the upper side of the lower bar, A, vis cut away to form a longitudinal recess, D, in the sicklebar, opening in the front side of the bar and closed at the rear side and at the ends of the bar.

The inner end of the top bar, B, Vis provided with Vtwo upwardly-prejectingflanges, E, projecting from the side edges ot' the end of the bar, and the inner sides of these flanges are 4o beveled, and a flat block, F, having beveled side edges, G G, lits between the said flanges, and is provided with an eye, H, to which the pitman is pivoted. 'lhe upper side ot'Y this block is provided with a transverse recess, I, into which a transverse bar, J, tits, having its ends resting in notches K K in the upper edges 0f the iianges E, which register with the ends of the transverse recess. and a screw, L, passes through the transverse bar into the block and Serial No. 161,327. (No model.)

into the upper bar, B, securing the transverse 5o bar to the block and preventing the block from sliding in the recess formed by the fianges.

The longitudinal recess in the sickle-bar 1s provided with a number ot' shouldered pins,

M, which project from the inner face of the recess of the lower bar, and tit with their reduced ends N in perforations O in the upper bar, and the cutter-blades P are formed :at their inner ends with L-shaped slots Q, opening at the inner edges of the blades, which 6o slots may be slipped so as to tit upon the pins which will rest in the inner ends of the slots, the inner arms of the slots being parallel with the inner edges ofthe blades. The innermost blade has the knee or bent portion of the slot resting against the shouldered pin, and has' a not-ch, R, in its inner edge, which notch will register with a vert-ical perforation, S, passing through the entire bar, and through the block having the pitman-eye, and a screw, T, 7o passes through this perforation and through the notch in the blade, securing the blade from slipping out of the recess, the blade being forced with the notch against the screw by means of a screw, U, fitti ngin athreaded perforation. V, in the end of the sickle-bar, which screw will bear with its inner end against the outer edge ot' the outermost blade and force it and the intermediate blades inward, so as to force the innermost blade, with its notch, against the screw T. In this manner it will be seen that by removing screw T and loosening the end screw, U, theinnermost blade may I be taken out, when the other blades may be slid inward upon the inner arms of their L- shaped slots, and any one ot' the blades may now be removed for the purpose of sharpening it or replacing it with another, or for any other purpose. v

Vhen the innermost blade is inserted and 9o the screw I inserted and the tighteningscrew at the end of the bar tightened, the blades will all be securely fastened in the recess of the sicklebar, and cannot be removed excepting by removing the innermost blade.

Having thus described my invention, Iclaim and desire to secure by Letters Patent of the United States-m 1. The combination of a sickle-bar having` a longitudinal recess opening in its forward side and provided with a number of vertical pins, cntteiblades having L-shaped slots 5 Opening in their inner edges and fitting and sliding upon the said pins, the innermost cutter-blade having the notch in its inner side edge, theserewpassing through the sickle-bar at'l its inner end fitting in the notch` and the 1o tightening-Soren' at the outerend ofthesieklebar bearing with iis inner end against'. the outer edge of the outermost; eutter-bade, as and for the purpose shown and sei; l'orth.

2. The combination of the sickle-har having 15 the anges upon the edges of' its inner end,

having beveled inner sides, tho block having 

